Estimate the value of the quantity.A hat is dropped from a hot air balloon. The hat falls faster and faster but its acceleration decreases over time due to air resistance. The acceleration is measured every second after the drop for 6 seconds. Find an upper estimate for the speed when 
A. 32.06 ft/sec
B. 192 ft/sec
C. 38.03 ft/sec
D. 69.14 ft/sec
Answer: D
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Give a geometric description of the set of points whose coordinates satisfy the given conditions.-2 ? z ? -1
A. No set of points satisfies the given relation B. The slab between the planes z = -2 and z = -1 (including planes) C. The line from z = -2 to z = -1 D. All points between z = -2 and z = -1 in the x-y plane
Solve.(x - 7)(8x + 23) = 0
A. 
B. 
C. 
D. 
Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = x2 between x = 0 and x = 3 using a left sum with two rectangles of equal width.
A. 16.875 B. 3.375 C. 12.5 D. 8.4375
Solve the problem.Two points A and B are on opposite sides of a building. A surveyor chooses a third point C 79 yd from B and 98 yd from A, with angle ACB measuring 59.3°. How far apart are A and B (to the nearest yard)?
A. 89 yd B. 107 yd C. 116 yd D. 98 yd